> If you add it up over 10-15 years the opportunity cost of living in the US is over $1M for most people.

And you get the opportunity of living in the U.S. I certainly think this is worth >$1M over a lifetime.

I like living in the U.S. I like having a car, and the associated freedom to take a day trip anywhere in the Bay Area. I like living in a suburban neighborhood where's there's trees and greenery, and yet stores, restaurants, and other conveniences are all nearby. I like being able to work on exactly the same stuff I do for fun and yet get paid for it. I like that I'm surrounded by some of the best & brightest immigrants from around the world in my job. I like my "horrible western diet", which basically consists of being able to eat whatever variety of food I feel like. I can have Mexican for lunch, fresh fish for dinner, Belgian waffles for breakfast the next day, Indian food for lunch, and Chinese for dinner. Is there any other country where you'll get similar variety?

Whenever I've visited other countries (notably China, but also Germany/Austria/New Zealand), I've always felt that they were nice places to travel, but I certainly would not want to live there. Well, except New Zealand. I could imagine retiring there, but I'd hate to waste my 20s and 30s there.

Happiness is knowing what you want, going for it, and having the courage to say "Nope, I don't think so" when people tell you you ought to want something else.